19680240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1907}}^1$

素因数の和:1966

約数の個数: 80

約数和(自身を含む): 62460288

約数和(自身を除く): 42780048

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 60, 80, 86, 120, 129, 172, 215, 240, 258, 344, 430, 516, 645, 688, 860, 1032, 1290, 1720, 1907, 2064, 2580, 3440, 3814, 5160, 5721, 7628, 9535, 10320, 11442, 15256, 19070, 22884, 28605, 30512, 38140, 45768, 57210, 76280, 82001, 91536, 114420, 152560, 164002, 228840, 246003, 328004, 410005, 457680, 492006, 656008, 820010, 984012, 1230015, 1312016, 1640020, 1968024, 2460030, 3280040, 3936048, 4920060, 6560080, 9840120, 19680240]

約数ペア:

[(1, 19680240), (2, 9840120), (3, 6560080), (4, 4920060), (5, 3936048), (6, 3280040), (8, 2460030), (10, 1968024), (12, 1640020), (15, 1312016), (16, 1230015), (20, 984012), (24, 820010), (30, 656008), (40, 492006), (43, 457680), (48, 410005), (60, 328004), (80, 246003), (86, 228840), (120, 164002), (129, 152560), (172, 114420), (215, 91536), (240, 82001), (258, 76280), (344, 57210), (430, 45768), (516, 38140), (645, 30512), (688, 28605), (860, 22884), (1032, 19070), (1290, 15256), (1720, 11442), (1907, 10320), (2064, 9535), (2580, 7628), (3440, 5721), (3814, 5160)]